Grain and seed cleaning machine



' 1,444,506. 1. HAUGHOM ET AL.

GRAIN AND SEED CLEANING MACHINE.

FILED JULY 29, 1920. 5 SHEETSSHEET 2.

Feb. 6, 1923.

214mm 1 05s.

A TTOR/l/E Y8 Feb. 6, 1923 1,444,596.

- 1. HAUGHOM ET AL.

GRAIN AND SEED CLEANING MACHINE.

FILED JULY 29, 1920.

6 SHEETSSHEET 4.

A TTOR/VEYS 6 0 A 4 4, 11 L. T E O H 6 U A H 0m 2 9 1 6 .b e F GRAIN AND SE ED CLEANING MACHJNE.

6 SHEETS-SHEET 5- FILED JULY 29. 1920.

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A TTOR/JE V8 Feb. 6, 1923.

J. HAUGHOM ET AL. GRAIN AND SEED CLEANING MACHINE.

6 SHEETSSHEET 6.

FILED JULY 29, 1920 ATTORNEYS v 7 provided with novel means for shaking Patented Feh. 53, l ga JOHN HA'UGHOHZ AND ANTON lI. FOSS, (3F FARGO, NORTH GIEAEN [Willi Implication filed July 29,

To my? UltOl/b it may (on ac/t Be it irnown that we, i citizens t was and State of North Dakota, have, 1

and nselnl Improvellients in (train and ("three Cleaning li inchines,

'? which the following is a specification.

Th s lflvilltllOil relates to n, separator or 111;; machine for grain and seeos, the odjct of "he invention being to provide a novel town of grain and seed mill or tor adapted to effectively and there Q iy the seed of all straw and chaff or other clean (a like 7L1t'1ClQS and to gencrelh enhance the value and to increase the ntihty 0i" devites oi the character to which the irrention rehates "ther object of the invention is: to 1()\'1(l* am improved separator oclwning NHEClliIli? having screei suppor g; riddle agitating the szine with 2! kicl-tilnig or Ward and backward notion and to so construct the screens that a more efficient cleaning; artion produced and clogging; thereof prevented.

A further object of the invention is to so ronstrnct the screens of perforwed sheet metal or other reticulated material in which the mesh or the sire of the openings mew be "varied iii-cording to the kind of grain to he termini t me adapting" the device tor clean ii'lji (him, 'sfliQ'tt. clover end tiin r 1y. or other er rain.

i still tnrther object of the invention is to provide improved means '50? i1. oarti a reciproratingr motion to the scr ens which are reinoriihly supported in the riddle or riddle with frame and in connection means tor shifting the 1 rebound or 1,5; Well it the grain or .e

positive e in one dn'ec:

i described in romhw It'lUil 'rh the izrriteiingr riddle screens iihovc set th. at hlow tan having means tor re iihn the supply of air tri the as Well as with the direction and lmrger in combination with 'crenting the escape of grein, K YiUltcLDQOUSlF 0 erzit l with the on of the screen from a sin source the hhasc. together tor-c0 of ti DAKOTA.

1330. Serial No. 399,878.

end ope ative connections between the same ecreenc thereof, for operating the blow tn;

direction at er i i i of agitation of the screen," as to improve the cleaning); :10- tion as we l e. to eiinnlity and render more diirzihle the eonstrnction o'l he device and or 'zitinp; parts er and further objects of our invention ll heccine reedilfv apparent to persons sl in the art from a consideration of leecrintion when taken in con- 7 l the accompanyingdreWines r. IQUTQ l is central vertical secti niil View of the improved gum and seed clean- :ichme or separator.

re :2 transv rse sectional view et'q'i (r2 the line ot Finure 1- igg-ure w i transverse horizontal erse horizontal secview taken on the line 4t-4 0% Figis e trae'mentnry horizontal taken on the line 5-5 of rfm'e 7 s o "ertiml eecti nel elevation f the zirrwna on' she iii in F'iagii'i'e n We 9 e d: ii of :1 connection em- Hi0} i d in the oiierea'msr moans shown in Fig ores t and T tor connectingthe same with the RiG YQ.

are 9 t n tragzimentary perspective rimv of one or the screens.

Fi nre 10 i detei tr iit mentary persnccview showaxrie' enivouil support for the Flffj llt l], is a fragmentary perspective 2 low of a portion of the sieve,

l igurc 12 is a side elevation of the cleaning: niachine or separator and showing a n'eferred form of driving means,

inure i3 is a similar fragmentary view of a inodilied form of driving means, and

liigure l fe is a similar View of a still further form. of driving; means.

Referring to the drawings in detail, in which like reference characters designate corresponding parts throughout the several views, our improved grain and seed cleaning machine or sci ator is shown as con'iprising a substantially rectangular frame it) hav'ir" corner siimiorting legs and provided with. side walls ll, a back wall 12 and a front wall. 13, the front portion however, being substantially open. The frame or rectangular box-like structure forming" the body of the machine may be of any preferred construction, but as shown, provided with the usual panels forming the sides, back and front, and rcinfo 'cing strips 14 constituting the frame proper. it is also to be understood that the walls or portions constituting the frame are su' iably bolted or otherwise. secured together in order to produce a rigid structure.

.At the top, there is provided edge or frame portion in which is d a hopper including; an inclined hoppcr board 16 and a back hoard ll dispc lid in spaced relation with respect thereto tot'orin a dischi'irge opening: 18 at the bottom, it being; understood that the grain or seed to be cleaned or separated is dopositcd or discliarn ezil into the hopper in proper quantities for feeding the same in the working parts for cleaning); the chaff, straw, and other foreign particles therefrom.

However, in order to regulate the feeding; of the material through the slot or opening 18, the bottom of the board 16 is provided with opposed guideways 19 receiving: therein a slide or hoard 20 which is movable at its rear 0: over and beneath the opening l8, tlie'opposite edge being connected pi otally with a 531 which projects tl ou the bo or a surrounda co on Y by n H or thnn'ih nu in order t. slide may be adjusted to vary the s ze of the opening through which the n'mtcrial is dischar e. beneath, or fed into the machine. The slide is normally retained in a closed position against the back board 17, as though the medium of resilient helical springs 24- which have connection with the lill ' board 1? beneath the slide 20 as indicated at 25, and with the opposite edge of the slide, as indicated at 26, thus serving to exert pull or stra n thereon against the action of the nut 23 when turned on the threaded end of the rod bolt 2i, in order to enlarge the opening 01 slot 18, or to permit a reduction in the size thereof when the slide is acted on by the springs due to the loosening; of the nut and the lengthening of the rod between the point of connection thereof with the slide and the front wall or inner face of the nut.

It should also be noted that the board 17 extends downwardly below the slide and is adapted to discharge the seed or grain onto the screens 27 which are arranged in superposed relation and form part of a riddle including: a riddle frame 28, any number of which may be arranged across the machine, but preferably one or two. The riddle frame rectangular construction, being; subor stantially open at the forward end, except for connecting strips 29 and 30 and is provided with a plurality, preferably a pair of :uideways or grooves 31 receiving the frames 32 of the screens slidably therein, in order that the screens may be conveniently placed in position or removed and to form tight joints around the opposite sides and back thereof. It should also be noted that the inner edges of the side portions of the screens are provided with grooves to receive the opposite edges of the screens 27, as indicated at and said screens are formed of perforated sheet metal, foraminous or reticulated material having; a plurality of staggered or alined elongated perforations or openings therethrough, Pllflilllllllllg chaff and other foreign particles to sift through, together with the seed or grain, and said screen is corrugated transversely, portions thereof being bent atright angles as inclicated at 3 and forming ridges preferably about twice as long as they are deep. This material is preferably the usual. zinc screen material consisting of sheet metal properly perforated and the ridges or corrugations will be about one-half inch deep and about one inch apart in the entire length of the screen, though this will be varied in accordance with the grain or seed in connection with which the machine is used, such as flax, wheat, clover and timothy, or the like. T he opposite ends of the screen are secured aganst the beveled edges 35 ofthe front and rear portions of th screen frames in order to anchor the sarn and arm as said portions at op msite inclinations in order that free discharge will. be prevented.

The riddle or riddle frame [its between the sides of the body or frame proper for forward and. backward shaking motion or agitation, means being provided to reciprocate the same as will. be hereinafter more lDO ia recs tion thereof is connected to the forward depending leg portions of a pair of inverted ll-shaped springs Bl, clamping bolts 58 being employed for this purpose and extending horizontally th rough the back portion or panel of the bod or frame, which latter may be of increased thickness and in the form of a heavy beam for this purpose, if desired, in order to withstand the strain and pressure exertedthereon due to the expansion and contraction of the spring-while the riddle is reciprocated when the machine is operated to clean the seed as will he later described. The bolts 38 are extended through the back portion of the riddle frame between grooves for receiving them; and have nuts 39 threaded or mounted thereon against the frame and spring respectively in order that the adjacent leg of the latter will be secured or anchored against the back of theriddle frame and held from movement with respect thereto. The other leg portions of the springs are extended against the outer face of the hack portion and through openings in a panel tOforming apart of the same at the hight or hent portions of the springs which are upwardly disposed, in addition to passing through the back portion and the bolts have nu ll engaged thereon in order to limit the forward displacement of the riddle frame under the action of the springs, it being understood that the portions disposed against the outer face of the back are anchored thereto in order that the inner portions will spring away from the same and thus force the riddle frame forvardlv after it has been pushed reariardly and released.

The front portion of the riddle frame is pivotally supported upon hinges or suppor ing rods or hangers 42 pivoted or hinged as shown at 43 to the front portion of the frame at their lower ends, and having; their upper ends detachablv connected to the bottom portion of the riddle frame as indicated at 44:. These hangers serve to support the riddle frame for forward and backward tation or reciprocation and the depending side portions of the frame of the riddle have connected thereto at each side of the body or frame of the machine, contractile helical springs 45 at the rear ends of the latter, the forward ends of the springs being connected to the sides 11 of the frame as indicated at d6 in order to ROElIlEtllY draw the riddle frame in a forward position in conjunction with the springs 37 while the springs 36 tend to impart an upward movement thereto when the riddle frame has been released and moved to a forward position after having been moved rearwardly, during the reciprocation or agitation thereof.

in order to impart a positive rearward motion to the riddle frame, a shaft 47 is the medium jourualled transverselv to in. bearings suppi e pan-o e and suitably held led by the horil l lov e re'l'crrcil to ainst longitudinal 1110 ement or end thrust 'ihis shaft carries a pluoi cams r errentric arms 4-33, dis- M i aiinenient with the side extensions of the riddle frame. Titles-4e extensions :1 re recessed or cut out beneath. to acconnnodate L-shaped or right a1 ular )Gtlllligf plates 5H, in the lower ends wh'ch rollers are journallcd to reduce wear and friction between the ,ZLIDS and the depending pOliZlOllS of said right angular plates which are disposed. in the path of the cams during the rotation of the shaft a l. 'ihus it will be seen that the shaft is driven by any suitable means or prime mover, the cams will contact with the rollers or abut'inents foi-nieiil iv the depending; portic s which the rollers are join orce the same rearward I is riddle frame against rin and 45 the sup 11 their pivots l3 to mac J the rrame against downward movement,

quick Why or kicking motion and the springs 36 will then suddenly move the same upwardly short distance in order to cause or allow the {a rs-yin to jump up from the riddle screens to insure there-ugh and: Lion and prevent clo ing as well. as to produce a more efficient screening}; operation. 3 shown, the lower ends of the plate? 50 are hifurcated to receive the rollers 51 therein, upon shafts engaging: the OPlL'ESfiEl furnations but it to he understood that any other suitable an friction means me;' be provided in lieu of the rollers vArlen; d beneath ti o shaker or ae'i screens is is second l per includins all z clined section 52 pre, alli}! of sheet meta and having its upper end secured r i back portion and its sides secures agaii the inner faces of the sides of the frame or body. the lower end thereof being unch- UAY, .1' l V H 73 oblllkri'll ant open thiouw Hie Mom This section forwardlv and cooperl l on 54.- hciween t of the section 53 :ted, and

front the section which may be adjustahly arranged through of a set screw to allow the same to be raised or lowered according to the the top portion 61 slopes downwar v at (it, in order weight of the grain. Also arranged below the riddle and in front of the wind boar'l and inclinedforwardly and downwardly, is

a grain board 5?, the the cross member 54- which also serves to support the hangers 422, while the bottom portion closed by a rearwardly and downwardly inclined board 58 adapted to discharge any grain therefrom as well as to prevent coarse screening and chad iiroin oscaping, from the mill. it should also be noted that the wind board 56 terminates a spaced distance from the lower end or one discha e spout hopper formed by the sections and 58, thus permitting the grain to be readily dischargeiil and the discharge regulated desired.v

immediately below the section 52 at the back, there is provided an opening for receiving a blower fan casing 59 having a rounding portion projecting outwardly and tapered toward its discharge end 60 so that ly and the bottom portion Gil slopes upwai .ly in a lesser degree than downward slope of the top portion. his casing is preferably of sheet metal, except the side po "tions 63 which are preferably of wood and are detachably secured in position or bolted to the sides 11 of the frame or body, as indicated that the same may be readily secured in position or removed for adjustment or repair. dour-nailed through the side portions 63 and the sides 11 oi the frame or body axially of the circular portion 59 of the casing, is a transverse shaft 65 hearing the blow fan 66 having a plurality oi blades or paddles, preferably four in number, to create cleaning the seed chaff and other same. The

the necessary air blast for or grain by separating the light or fine particles -from the casing 59 is provided with suitable openings at the ends or top portion thereof, as indicated at 67 for supplying air to the interior of the casing, being drawn through as the tan rotates and the supply thereof being regulated by a gate or shutter 68, prelterably hinged in position adjacent the opening at the top portion of the exposed part of the casing, lit the discharge end of the oasing, there is disposed a pivoted wind shut ter 69, the pivots 70 of the siutters being adjustable so as to vary the angular disposition of the shutters in or to regulate the discharge or? the blast 0111 the cas ng through the medium of wing nuts "ll. conveniently disposed at the exterior of the frame or body and adapted to be manipulated to permit turning of the shutters and to hold the same in adjusted positions. The discharge end of the blow tan casing is also disposed beneath the wind board 55 and the grain board 57 and the front or the casing toward which the blast of air is discharged or blown, is open for a considerable distance same extending liilUlll in addition to the novel angular relation of the tan and easing, so that as the grain is .i'alllng from the chute, the chad will be blown or separated therefrom with the result that the grain will be more thoroughly cleaned than in machines of the usual type. The grain is adapted to drop on a sieve 72, which latter is-supported in or carried by a frame 73, and is preierably of ioraniinous or reticulated material, such as Zinc or other sheet metal properly perforated, the periorations or mesh of the sieve 72 being smaller than the screens, in order that the in will be prevented from dropping through, but at the same time, to permit the dust and liner particles to drop through the perforations or openings. lhe frame 1'3 is designed to detachably engage the guides or grooves 74 in the opposite sides of the sieve frame 75 which is supported in a rearwardly and downwardly inclined position from the front opening toward which the air blast is discharged and an opening in the back oortion a lower level. The "frame is supported for sidewise or lateral agitation or swinging movement through the medium or hanger strips 76 suspended from the inside panels 7? oi the frame or body and at a spaced distance from the side walls therebeneath, in order that tree motion of the sieve and frame thereof will be permitted, the hanger strips bending or flexing in order to allow the required agitation to insure dis charge of the grain at the rear end of the sieve, and being of flexible spring metal.

in order to impart the sioewise or lateral shaking motion to the sieve frame and sieve therei there is journ alled transversely through the nine or body sides 11, immediately forwardly oi the top oi? the blow fan casing, a shaft 77, on one end of which outwardly oil? the frame side is fixed an eccentric or cranlr disk 78 to which is eccentrirally connected detachably through the medium of the crank pin 79, the apertured upper end of the connecting rod 80 which has its lower end also apertured and bent at right angles as indicated at 81 while the upper portion is disposed parallel. to the era-jolt dish. 'llhe aper ired lower end is pivotally engaged with the rearwardly extend ing end or trunn n 82 of an an gle or helllever which is pivoted it its bight portion to one or the connecting bolts 84L coiniecting the front and side portions :torming the it), a cut out or notch 85 being provided in the adjacent portion or the side to accommodate said lever and permit the necessary rocking movements thereof. The trunnion 82 is formed a reduced extension of the lower or short arm of the lever 83 and projects at right angles to the plane of said lever, the latter extending crosswise and having its longer arm connected at its upper end through the medium of a hook assists in the dis harge or arranged in an opening 88 at one side of sieve frame 75. In if is way. as the she. .s. i is driven, the crank d 5'11 will be i ated. t actuating the connecting rod 9.1 U an oscillation of the reel; lever 33. with result that the sieve frame and slots cs1 thereby will be caused to shake or a transversely at right angles to the direc ic of motion i irted to the shelter s u above described. this being permit ed and facilitated and eye connection 86 with a cross nin 8'? s 76 while the sidewise motion the grain at the back end. It also be understood that the mesh of the screens and sieve or the site of the perforations therein will be varied in accords ice with the kind of seed or grain to be cleaned. as it is thoucl will be inanifest to persons slrilled in the The eye 72 is particularly shown in Figure drawings. is provided with circular p tions of relatively fine mesh or coin; tively small size.

Thus, in the operation of the d the grain or seed is :ted into the hopper at the top of the r'iachine. the discli thercol into the screens being; regulated as heretofore described. The screens are then C nilt-aneously agitated by the rotation the shaft 47, while driving the shaft 6.5 and thus the blast tan, and causing agitation or reciprocation of the sieve in path or oirection at right angles to the path or direction of agitating motion of the screen. its the grain is discharged into the chute or hopper formed by the sections 7:2 and 53. the l; will fall or drop in front of the blast .an casing onto the sieve, running down into this and being discharged at the back. The seed and grain Will be thoroughly cleaned owing to the distance between the discharge end of the chute and the sieve and the peculiar angle at which the blast of air is dis charged against the falling seed and grain, so that the chaff and other light particles and dust are effectively separated and blown from the same. The inletand discharge of the air can be effectively regulated by the shutters 68 and 69.

In order to impart rotation to the shafts 47, 65 and 7?. either of the drive mechanisms shown in Figures .12, 13 and may be employed. As shown in Figure 12. there is fixed to the projecting; end of the shalt e? a pulley 89 ans on the shaft 65, nu vey 90, while fixed to the shaft 7'? is a pulley 9L a belt or other endless drive member 92 be ing trained around the pulleys so tl'iat same may be rotated. Owing to the that the pulley is smaller than leys 89 and 91, it will be obvioi blast. fan will be rotated at a r end of the shaft also carries a lur pulley 93 around which a nrive belt 9- is i /Tr ined said belt b driven i re source oil pom u or nit ecoiuunical ope Y be accor iplished.

.11 auxiliary belt 96 en- 9'! lined ti el .2 ing a puller belt corresnondinn and 96 heretotore d *ribed. The shaft 354 carthe shaft "i"? corresponding}; vhile smaller 7 l u. ll-GIDQ driven 2 and l. It is to be understood that power may be derived from any siutable prune mover or the devics may be ojierate l be hand neces In View for" oi 1S tho that the oue'. .in of lo device will be readily uno and in iew oi the simplicity and ractical value the-t it will cont mend itself to those slrilled in the art.

Having thus described our invention, whet we claim is:

1. The combination with a cleaning inachine frame having a hopper provided with a discharge opening and means for regu lating the discharge oi? material there through; of a plurality of inverted ll-shaped springs mounted at the back of the frame. a riddle having a frame. bolts connected to the riddle frame and passed through the heel: of the machine i. 11116. the leg portions or the springs being; connected to the respective frames and rotainin ethe riddle frame forwardly iilisplared screens mounted in said riddle frame. means for imparting backward movement to the riddle rame and means swingin' y supporting the bott e front thereof.

.w; and means tor reenlisting the discharge material theretllrough;

of a plurality of inverted U-shaped springs mounted at the back of the frame, a riddle having a frame, bolts connected to the riddle frame and passed through the back of the machine frame, the leg portions of the springs being connected to the respective frames and retaining the riddle frame forwardly displaced, screens mounted in said riddle frame, means for imparting a backward moveinc t to the riddle frame, a shaft journalled transversely through the frame and provided with cams, abutments carried by the sides of the riddle frame for engagement by said cams to impart a backward movement to the riddle frame, springs connecting the riddle frame to the frame of the machine to return the same to a forward position upon release of said cams from the abutments, means to limit the forward movement of the riddle frame, and means to impart an upward jumping motion to the riddle frame.

3. In a seed cleaning machine, a riddle frame, hinged supports for the same permitting limited upward movement thereof, spring means supporting the opposite end of the riddle frame, said spring means serving to move the riddle frame in one position, additional spring means serving to similarly move the riddle frame, said riddle frame having recessed portions, angular abutments in said recessed portions and provided with anti-friction means at their projecting lower ends, a shaft rotatablymounted, and cams on the shaft for engaging said anti-friction means on the abutments to agitate the riddle frame as the shaft rotates.

4-. In a seed cleaning machine, a riddle frame, hinged supports for the same perframe having recessed portions, angularabutments in said recessed portions and provided with anti-friction means at their projecting lower ends, a shaft rotatably mounted, cams on the shaft for imparting movement to the riddle frame in one direction by engagement with said abutments, and springs between the top of the frame and the riddle frame to impart a jumping motion to the riddle frame when the same is released from the cams.

5. A riddle including a frame having guideways, and a plurality of screens in said guideways, said screens comprising frames, said frames having grooves at their opposed sides and having inwardly beveled end portions, screens having their side edges fitted in said grooves and having the ends thereof directed upwardly against said beveied portions and anchored thereto.

6, A riddle including a frame having guideways, and a plurality of screens in said guideways, said screens comprising frames, said frames having grooves at their opposed sides and having inwardly beveled end portions, screens having their side edges fitted. in said grooves and having the end thereof directed upwardly against said beveled portions and anchored thereto, said screens being adapted for disposition in in cliner planes.

JOHN HAUGHOM. ANTON N; FOSS. 

